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<div align="center">
            <h2>XML Digital Signature</h2>
            </div>
<p> <a href="http://www.w3.org/TR/xmldsig-core">XML
Digital Signature 1.0</a> provides <a href="http://www.w3.org/TR/xmldsig-core/#def-Integrity" class="link-def">integrity,</a> <a href="http://www.w3.org/TR/xmldsig-core/#def-AuthenticationMessage" class="link-def">message authentication,</a> and/or <a href="http://www.w3.org/TR/xmldsig-core/#def-AuthenticationSigner" class="link-def">signer authentication</a> services for data of any
type, whether located within the XML that includes the signature or
elsewhere. </p>
<p> XML Security Library supports all MUST/SHOULD/MAY
features and algorithms
described in the W3C standard and provides API to sign prepared
document templates,
add signature(s) to a document "on-the-fly" or verify the signature(s)
in the document. </p>
<p> <a href="http://www.aleksey.com/xmlsec/xmldsig-verifier.html">XML Digital
Signature
Online Verifier</a> is an example of a real application based on XML
Security Library. Using this tool you can verify any XML Signature
and get detailed report on what and how was signed. </p>
<div align="center">
            <h3>XML Security Library Interoperability Report</h3>
            </div>
<h4 style="text-align: center;">XML Digital Signature 1.0 (<a href="http://www.ietf.org/rfc/rfc3275.txt">RFC 3275</a>)</h4>
<div align="center">
            <table style="width: 85%;" border="1" cellpadding="2" cellspacing="2"><tbody>
<tr>
<td style="width: 40%;" align="left" valign="top"><b>Features and algorithms</b></td>
                  <td valign="top"><b>XMLSec with OpenSSL</b></td>
                  <td valign="top"><b>XMLSec with GnuTLS</b></td>
                  <td valign="top"><b>XMLSec with GCrypt</b></td>
                  <td valign="top"><b>XMLSec with NSS</b></td>
                  <td valign="top"><b>XMLSec with MSCrypto</b></td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Detached Signature</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Enveloping Signature: 
same document reference with fragment (URI="#Object1")</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Enveloped Signature: 
same document reference (URI="") with Enveloped Signature Transform</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">SignatureValue 
generation/validation</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Manifest DigestValue 
generation/valdiation</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Laxly schema valid Signature 
element generation</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XPointers '#xpointer(/)'</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XPointers '#xpointer(id("<em>ID</em>"))'</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XPointers: full suppport</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XPath</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">the dsig XPath 'here()' 
function (can be used to implement enveloped signature)</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XSLT transform</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">RetrievalMethod
(e.g. X509Data)</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">SHA1</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Base64</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">HMAC-SHA1</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">DSA with SHA1 (DSS) <a href="#dsa-sha1"><sup>(1)</sup></a>
</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">RSA with SHA1</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" valign="top">X509 support</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" valign="top">X509 CRL support</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Minimal C14N (deprecated)</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">
<a href="http://www.w3.org/TR/xml-c14n">Canonical XML 1.0</a>
</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">
<a href="http://www.w3.org/TR/xml-exc-c14n">Exlusive Canonical XML 1.0</a>
</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">
<a href="http://www.w3.org/TR/xml-c14n11/">Canonical XML 1.1</a>
</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">Enveloped Signature</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
</tbody></table>
<div align="left"> <br><h4 style="text-align: center;">Additional XML Security
Algorithms (<a href="http://www.ietf.org/rfc/rfc4051.txt">RFC 4051</a>)</h4>
            <table style="width: 85%; text-align: left; margin-left: auto; margin-right: auto;" border="1" cellpadding="2" cellspacing="2"><tbody>
<tr>
<td style="width: 40%;" align="left" valign="top"><b>Features and algorithms<br></b></td>
                  <td valign="top"><b>XMLSec with OpenSSL</b></td>
                  <td valign="top"><b>XMLSec with GnuTLS</b></td>
                  <td valign="top"><b>XMLSec with GCrypt</b></td>
                  <td valign="top"><b>XMLSec with NSS</b></td>
                  <td valign="top"><b>XMLSec with MSCrypto</b></td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">MD5</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">SHA224</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">SHA256</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">SHA384</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">SHA512</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">HMAC-MD5</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">HMAC-SHA224</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">HMAC-SHA256</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">HMAC-SHA384</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">HMAC-SHA512</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="width: 40%;" valign="top">HMAC-RIPEMD160</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-MD5</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-SHA224</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-SHA256</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-SHA384</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-SHA512</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">RSA-RIPEMD160</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ECDSA-SHA1</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ECDSA-SHA224</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ECDSA-SHA256</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ECDSA-SHA384</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ECDSA-SHA512</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ESIGN-SHA1</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ESIGN-SHA224</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ESIGN-SHA256</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ESIGN-SHA384</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ESIGN-SHA512</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Minimal C14N (deprecated)</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="width: 40%;" align="left" valign="top">XPointer transform</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
                  <td valign="top">Y</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">ARCFOUR Encryption</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia Block Encryption 128</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia Block Encryption 192</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia Block Encryption 256</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia Key Wrap 128</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia
Key Wrap 192</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">Camellia Key Wrap 256</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">PSEC-KEM</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
</tr>
</tbody></table>
<div align="left">
<h4 style="text-align: center;">Other algorithms</h4>
            <table style="width: 85%; text-align: left; margin-left: auto; margin-right: auto;" border="1" cellpadding="2" cellspacing="2"><tbody>
<tr>
<td style="width: 40%;" align="left" valign="top"><b>Features and algorithms</b></td>
                  <td valign="top"><b>XMLSec with OpenSSL</b></td>
                  <td valign="top"><b>XMLSec with GnuTLS</b></td>
                  <td valign="top"><b>XMLSec with GCrypt</b></td>
                  <td valign="top"><b>XMLSec with NSS</b></td>
                  <td valign="top">
<b>XMLSec with MSCrypto</b> </td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">GOST94 digests</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">Y<a href="#gost-mscrypto"><sup>(2)</sup></a>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 40%;">GOST2001 signatures</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">N</td>
                  <td valign="top">Y<a href="#gost-mscrypto"><sup>(2)</sup></a>
</td>
</tr>
</tbody></table>
<br><br><a name="dsa-sha1"></a><sup>(1)</sup> Defining <a href="http://www.w3.org/TR/xmldsig-core/#sec-DSAKeyValue"> DSA key</a>
with Seed and PgenCounter is not supported.
<br><a name="gost-mscrypto"></a><sup>(2)</sup> Requires install of a CSP 
providing these algorithms.<br><p>Test vectors (from <a href="http://www.w3.org/Signature/2001/04/05-xmldsig-interop.html">IETF/W3C
XML Signature WG: XML Signature Interoperability page</a>): <br><a href="http://lists.w3.org/Archives/Public/w3c-ietf-xmldsig/2002AprJun/att-0016/01-merlin-xmldsig-twenty-three.tar.gz">merlin-xmldsig-twenty-three.tar.gz</a>
            <br><a href="http://lists.w3.org/Archives/Public/w3c-ietf-xmldsig/2001AprJun/att-00%2033/01-merlin-xmldsig-sixteen.tar.gz">merlin-xmldsig-sixteen.tar.gz</a>
(features, deprecated)<br><a href="http://lists.w3.org/Archives/Public/w3c-ietf-xmldsig/2001JanMar/att-0155/04-merlin-xmldsig-fifteen.tar.gz">merlin-xmldsig-fifteen.tar.gz</a>
(algorithms, deprecated)<br></p>
            </div>
            </div>
</div>
</td></tr></table></td>
</tr></table></body>
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